The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 16, 1980
Filed:
Jul. 10, 1979
Applicant:
Inventors:
Isao Hashimoto, Iwakuni, JP;
Hiroaki Nakagawa, Iwakuni, JP;
Toru Taguchi, Ichihara, JP;
Hirohiko Nambu, Iwakuni, JP;
Assignee:
Mitsu, Petrochemical Industries, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
568753 ; 568763 ;
Abstract
In a process for purification of crude resorcinol derived from an acid-cleavage product of m-diisopropylbenzene dihydroperoxide and containing impurities having higher boiling points than resorcinol is, the recrystallization of said crude resorcinol from a mixed solvent consisting of
Hashimoto, Isao. (1980). Process for purification of crude resorcinol (U.S. Patent No. 4239921). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4239921
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile